201002023 has 4 divisors (see below), whose sum is σ = 204794568. Its totient is φ = 197209480.

The previous prime is 201001951. The next prime is 201002057. The reversal of 201002023 is 320200102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201002023 - 2¹⁷ = 200870951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201002063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1896193 + ... + 1896298.

It is an arithmetic number, because the mean of its divisors is an integer number (51198642).

Almost surely, 2^201002023 is an apocalyptic number.

201002023 is a deficient number, since it is larger than the sum of its proper divisors (3792545).

201002023 is an equidigital number, since it uses as much as digits as its factorization.

201002023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3792544.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 201002023 is about 14177.5182242874. The cubic root of 201002023 is about 585.7785654758.

Adding to 201002023 its reverse (320200102), we get a palindrome (521202125).

The spelling of 201002023 in words is "two hundred one million, two thousand, twenty-three".